EntailmentBank uses multiple-choice questions (and the correct answer option) from the ARC dataset
of grade-school science questions [1]}, and a corpus of science- and general knowledge
derived from WorldTree V2 [2]}, [3]}. WorldTree includes a knowledge-base of science-relevant knowledge, expressed as a collection
of tables, but is easily converted to a corpus of sentences for EntailmentBank as each table row is
(by design) readable as a fluent English sentence. WorldTree was created with
ARC questions in mind, making it an ideal source for EntailmentBank's corpus.
